diff --git a/Elwig/Windows/DeliveryAdminWindow.xaml.cs b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
index d2f6d59..7722dc8 100644
--- a/Elwig/Windows/DeliveryAdminWindow.xaml.cs
+++ b/Elwig/Windows/DeliveryAdminWindow.xaml.cs
@@ -406,17 +406,17 @@ namespace Elwig.Windows {
                         filter.RemoveAt(i--);
                         filterNames.Add("gebunden");
                     } else if (e.Length >= 4 && e.Length <= 9 && "!gebunden".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
-                        prd = prd.And(p => p.IsGebunden == false);
+                        prd = prd.And(p => p.IsGebunden != true);
                         filter.RemoveAt(i--);
-                        filterNames.Add("ungebunden");
+                        filterNames.Add("nicht gebunden");
                     } else if (e.Length >= 5 && e.Length <= 10 && "ungebunden".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
                         prd = prd.And(p => p.IsGebunden == false);
                         filter.RemoveAt(i--);
                         filterNames.Add("ungebunden");
                     } else if (e.Length >= 6 && e.Length <= 11 && "!ungebunden".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
-                        prd = prd.And(p => p.IsGebunden == true);
+                        prd = prd.And(p => p.IsGebunden != false);
                         filter.RemoveAt(i--);
-                        filterNames.Add("gebunden");
+                        filterNames.Add("nicht ungebunden");
                     } else if (e.Length >= 5 && e.Length <= 8 && "handlese".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
                         prd = prd.And(p => p.IsHandPicked == true);
                         filter.RemoveAt(i--);
@@ -441,6 +441,14 @@ namespace Elwig.Windows {
                         prd = prd.And(p => p.IsNetWeight == true);
                         filter.RemoveAt(i--);
                         filterNames.Add("netto Wiegung");
+                    } else if (e.Length >= 5 && e.Length <= 9 && "lesewagen".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        prd = prd.And(p => p.IsLesewagen == true);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("Lesewagen");
+                    } else if (e.Length >= 6 && e.Length <= 10 && "!lesewagen".StartsWith(e, StringComparison.CurrentCultureIgnoreCase)) {
+                        prd = prd.And(p => p.IsLesewagen == false);
+                        filter.RemoveAt(i--);
+                        filterNames.Add("kein Lesewagen");
                     } else if (e.Length == 2 && var.ContainsKey(e.ToUpper())) {
                         filterVar.Add(e.ToUpper());
                         filter.RemoveAt(i--);